view data/model/ModelDataTableModel.h @ 490:c3fb8258e34d

* Make it possible to import an entire session from an RDF document.
  However, at the moment the timings of events appear to be constrained
  by how far the audio decoder has got through its audio file at the
  time the event is queried -- need to investigate.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2008 QMUL.
    
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _MODEL_DATA_TABLE_MODEL_H_
#define _MODEL_DATA_TABLE_MODEL_H_

#include <QAbstractItemModel>

#include <vector>

class TabularModel;
class Command;

class ModelDataTableModel : public QAbstractItemModel
{
    Q_OBJECT

public:
    ModelDataTableModel(TabularModel *m);
    virtual ~ModelDataTableModel();

    QVariant data(const QModelIndex &index, int role) const;

    bool setData(const QModelIndex &index, const QVariant &value, int role);

    bool insertRow(int row, const QModelIndex &parent = QModelIndex());
    bool removeRow(int row, const QModelIndex &parent = QModelIndex());

    Qt::ItemFlags flags(const QModelIndex &index) const;

    QVariant headerData(int section, Qt::Orientation orientation,
                        int role = Qt::DisplayRole) const;

    QModelIndex index(int row, int column,
                      const QModelIndex &parent = QModelIndex()) const;

    QModelIndex parent(const QModelIndex &index) const;

    int rowCount(const QModelIndex &parent = QModelIndex()) const;
    int columnCount(const QModelIndex &parent = QModelIndex()) const;

    QModelIndex getModelIndexForFrame(size_t frame) const;
    size_t getFrameForModelIndex(const QModelIndex &) const;

    void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);

    void setCurrentRow(int row);
    int getCurrentRow();

signals:
    void frameSelected(size_t);
    void addCommand(Command *);
    void currentChanged(const QModelIndex &);
    void modelRemoved();

protected slots:
    void modelChanged();
    void modelChanged(size_t, size_t);
    void modelAboutToBeDeleted();

protected:
    TabularModel *m_model;
    int m_sortColumn;
    Qt::SortOrder m_sortOrdering;
    int m_currentRow;
    typedef std::vector<int> RowList;
    mutable RowList m_sort;
    mutable RowList m_rsort;
    int getSorted(int row) const;
    int getUnsorted(int row) const;
    void resort() const;
    void resortNumeric() const;
    void resortAlphabetical() const;
    void clearSort();
};

#endif